Packaging machine and method of forming packages



Feb. 14, 1967 s, LOVAS ETAL 3,303,628

PACKAGING MACHINE AND METHOD OF FORMING PACKAGES F'l d I 1 e Dec. 1'7, 1962 55 Sheets-Sheet 1 VINVENTORS STEPHEN P LovAs 6m gaozee S.D\Mou\co ATTORNEYS Feb. 14, 1967 5 p LOVAS ET AL 3,303,628

PACKAGING MACHINE AND METHOD OF FORMING PACKAGES Filed Dec. 17, 1962 Z55 Sheets-Sheet 2 INVENTORS B fi-rapuau P- kOVAS -q G|g$OEGE S.D\MON\CO ATTO2NEY5 Feb. 14, 1967 s. ov s ET AL 3,303,628

PACKAGING MACHINE AND METHOD OF FORMING PACKAGES Filed Dec: 1'7, 1962 55 Sheets-Sheet 5 1. 0 It: 1 I

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INVENTORS STEPHEN P. LOVAS rv EG-E SDMomco T 02 wars Feb. 14, 1967 p LQVAS ET AL 3,303,628

PACKAGING MACHINE AND METHOD OF FORMING PACKAGES Filed Dec. 17, 1952 '55 Sheets-Sheet 4 A m INVENTORS TEPH'EN F. LovAs. a

EOEG-E 5. D\ Momco BY TQIZNEYS Feb. 14, 1967 s, p LOVAS ET AL 3,303,628

PACKAGING MACHINE AND METHOD OF FORMING PACKAGES 55 Sheets-Sheet 5 Filed Dec. 17, 1962 Q INVENTORS $wapneu D. LovAsa- GEozeE SDMomco flytm" m 1m Feb. 14, 1967 s LQVAS ET AL 3,303,628

PACKAGING MACHINE AND METHOD OF FORMING PACKAGES Filed Dec. 17, 1962 55 Sheets-Sheet 6 INVENTORS STEPHEN P. kovAsc' C r eozee S. Dmomco a WML W ATTORNEYS Feb. 14, 1967 S. P. LOVAS ET AL PACKAGING MACHINE AND METHOD OF FORMING PACKAGES Filed Dec. 17, 1962 53 Sheets-Sheet 7 mHM INVENTORS TEDHEN P. LOVAS c2 GE$ORGE SDMomco TTQQNEYS Feb. 14, 19 67 5 p ov s ET AL 3,303,628

PACKAGING MACHINE AND METHOD OF FORMING PACKAGES Filed Dec. 17, 1962 55 Sheets-Sheet 8 IN VEN TORS PM P. LovAs w o s S.DIMON\CO nuwar ATTOEMEYS Feb. 14, 1967 LOVAS ETAL PACKAGING MACHINE AND METHOD OF FORMING PACKAGES 55 Sheets-Sheet 9 Filed Dec. l7, 1962 m o m m j W mfimm .l mwm A MINI! H M H n WW E n 5 m m 2 2 o i L J m lliiii! 11:1 iill 2/ I 5 krill m 2 M {F o m m 2 q n F u s w m 2 mmwm Imam

Feb. 14, 1967 5 LOVAS ET AL PACKAGING MACHINE AND METHOD OF FORMING PACKAGES 55 Sheets-Sheet l0 Filed Dec. 17, 1962 P L xz ay P EH O E-EOEGE SDMomco ATTO2NEY5 Feb. 14, 1967 ov s ETAL 3,303,628

PACKAGING MACHINE AND METHOD OF FORMING PACKAGES 53 Sheets-Shet 12 Filed Dec. 17, 1962 IN VEN TORS STEPHEN P. Lovns 2 H EYS 'Jl PMEL Feb. 14, 1967 5, p LOVAS ET AL PACKAGING MACHINE AND METHOD OF FORMING PACKAGES 55 Sheets-Sheet 15 Filed Dec. 1'7, 1962 p INVENTORg: TEDEH ovAs EEOZGE S. b\ Momco Feb. 14, 1967 s, ov s ETAL PACKAGING MACHINE AND METHOD OF FORMING PACKAGES 55 Sheets-Sheet 14 Filed Dec. 17, 1962 MOJ pl bQ/ENTORSCQW E QVAS ig esDxMomco 744M, P6 M 2 M ATTOQMEYS Feb. 14, 1967 LQVAS ET AL PACKAGING MACHINE AND METHOD OF FORMING PACKAGES I 55 SheetsSheet 15 Filed Dec. 17, 1962 ism/ Exes- BOG \INVENTORS STEPHEN P. LovAs 64* BYGEOEGE SDMomco flaw, Ma, M m

ATTQRMEYS Feb. 14, 1967 ov ETAL PACKAGING MACHINE AND METHOD OF FORMING PACKAGES 55 Sheets-Sheet 16 Filed Dec. 17, 1962 5 mm a mvu m OOO TL 0 m v m m v M PE :5 2 o E m M & W NOM M s. P. LOVAS E AL 3,303,628

PACKAGING MACHINE AND METHOD OF FORMING PACKAGES 55 Sheets-Sheet 1'7 Feb. 14, 1967 Filed Dec. 17, 1952 Feb. 14, 1967 S. P. LOVAS ET A PACKAGING MACHINE AND METHOD OF FORMING PACKAGES Filed Dec. 17, 1962 55 Sheets-Sheet 18 INVENTORS STEPHEN P. LovAs 9" BYGYEOIZGE S. DMomco Feb. 14, 1967 LOVAS ETAL PACKAGING MACHINE AND METHOD OF FORMING PACKAGES s5 Sheets-Sheet 19 Filed Dec. 17, 1962 4W WAX'TTOEHEYS Feb. 14, 1967 5, LQVAS ET AL PACKAGING MACHINE AND METHOD OF FORMING PACKAGES 55 Sheets-Sheet 20 Filed Dec. 17, 1962 mm m Mam u WAD 2 mm? m W D mam 

1. THE HEREIN DESCRIBED METHOD OF FORMING PACKAGES WHICH COMPRISES, FEEDING A HEAT SEALABLE WEB STEP-BY-STEP AND HORIZONTALLY WHILE GRIPPING THE SAME AT ITS MARGINAL EDGES ONLY, HEATING THE WEB TO PREPARE IT FOR THE FORMATION OF POCKETS THEREIN, SUCCESSIVELY FORMING CLUSTERS OF POCKETS IN THE WEB DURING ONE OF THE REST POSITIONS, EACH CLUSTER OF POCKETS BEING DEFINED IN PART BY AN OUTLINING PERIPHERAL WALL PORTION AND ALSO BY LONGITUDINAL AND TRANSVERSE WALL PORTIONS INTERSECTING CENTRALLY TO PROVIDE FOUR ADJACENT POCKETS CORNERS, DEPOSITING FILL IN THE POCKETS OF EACH CLUSTER, LAYING A HEAT SEALABLE COVER WEB OVER THE FILLED POCKET CLUSTERS, HEAT SEALING THE COVER WEB OVER EACH POCKET CLUSTER ABOUT THE PERIPHERAL WALL PORTION THEREOF AND OVER THE INTERSECTING WALL PORTIONS EXCEPT ADJACENT THE INTERSECTION THEREOF, EVACUATING THE POCKETS OF EACH CLUSTER SIMULTANEOUSLY THROUGH AN ORIFICE FORMED AT THE WALL PORTION INTERSECTION THEREOF, AND THEN COMPLETING THE HEAT SEALING AT THE WALL PORTION INTERSECTION. 